CVE-2026-54725

CRITICAL9.6

vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API

Published Jul 31, 2026

Modified 3 weeks ago

Details

vault-secrets-webhook is a Kubernetes mutating webhook that makes direct secret injection into Pods possible. Prior to 1.23.1, parseVaultConfig() in pkg/webhook/config.go accepts the vault.security.banzaicloud.io/vault-addr annotation, MutateConfigMap and MutateSecret call newVaultClient in pkg/webhook/webhook.go, and vault.security.banzaicloud.io/vault-serviceaccount can cause a ServiceAccount JWT to be sent to an attacker-controlled Vault address. This issue is fixed in version 1.23.1.

References

WEB

https://github.com/bank-vaults/vault-secrets-webhook/commit/76db45976fee0f54cafd94dffa425e6b542f65a0

WEB

https://github.com/bank-vaults/vault-secrets-webhook/releases/tag/v1.23.1

WEB

https://github.com/bank-vaults/vault-secrets-webhook/security/advisories/GHSA-r2v3-8gwf-7ghm

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-54725

CVSS Analysis

CVSS v3.1

9.6